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Provide support for context menus #1

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merged 8 commits into from
Sep 2, 2021

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sjchmiela
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@sjchmiela sjchmiela commented Sep 2, 2021

Instagram#1430 +:

  • merged latest master in
    • the only conflict was in CHANGELOG
  • added return to collectionView:contextMenuConfigurationForItemAt:point: as per this comment
  • fixed indentation in existing changes to the codebase
    • thanks for letting me know of Reindent!
  • removed context menu methods from selection delegate as per this comment
  • added support for preview methods too (we need it to customize UITargetedPreview)
    • I left/added support for implementing context menu in section controllers even though we are not using it right now. I think author of the original pull request intended to let developers implement context menu methods in either collectionViewDelegate of the IGListAdapter or section controllers (see this comment).
    • Since we do receive indexPath when asked about context menu configuration it's easy to grab the appropriate section controller.
    • It is not so easy when we're asked for the targeted preview though where we only receive the configuration.
      • In ChatViewController I used configuration.identifier = indexPath as NSCopying to be able to figure out for which message the preview is. Here we can't really do that — it's the delegate who should be able to set their own identifier, we can't override it in library.
      • To match configuration and section controller I added an NSMapTable with weak keys and weak values — as long as configuration and section controller are used/remembered/retained by other objects we will remember them in the table. As long as they are to be forgotten – they are since the references we hold are weak.

@sjchmiela sjchmiela force-pushed the feature/support-for-context-menu branch from b498546 to 223ee4b Compare September 2, 2021 09:13
@sjchmiela sjchmiela merged commit 753d660 into master Sep 2, 2021
@sjchmiela sjchmiela deleted the feature/support-for-context-menu branch September 2, 2021 19:16
@amalenduk
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Hi @sjchmiela, The example you have added doesn't work at all, I see you are returning nil (UIContextMenuConfiguration *)collectionView:(UICollectionView *)collectionView contextMenuConfigurationForItemAtIndexPath:(NSIndexPath *)indexPath point:(CGPoint)point in this function you should have returned configuration otherwise it doesn't work at all

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3 participants